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Explain the difference between primary and secondary source of data along with the relative advantages and disadvantages of each?
A primary source is a source that has seen the event you're researching first hand and has either spoken with you or wrote a book about what they saw. A Secondary source is a source that has known somone who has seen the event and has told them about it. The advantages of a primary source first and foremost is the accuracy of the story. I don't really know of any disadvantages. The Advantages of a Secondary source is that they could propose a new idea or look at the event from a different point of view or study the many different aspects of the event that occured. The disadvantage may be the lack of accuracy because many just do a little research and think they can write a book on it.
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What is the difference between absolute variation and relative variation?
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What are the relative advantages and disadvantages of the gravity dams over earth dams?
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What is the difference absolute and relative?
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What are the relative advantages and disadvantages of internal CD burner and external CD burner?
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A difference in the brightness of two lights indicates a difference in their relative?
amplitude
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What is the difference absolute and relative chronology?
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its clarity and precision. its relative intolerance of error
